Wiktionary
ciliary muscles
n. (ciliary muscle English)
Usage examples of "ciliary muscles".
When that happens, the ciliary muscles contract, and this lessens the tension on the suspensory ligaments.
After the first few kilometres I could feel the ciliary muscles contracting and relaxing as my eyes adjusted to the changing light-conditions.
Some of the practitioners were willing to concede the possibility that the ciliary muscles did, in addition, change to some extent the shape of the lens.